Heating unit



Patented Dec. 3, 1929" RALPH HAMILTON nnacn,

mas, 'ro m'rnrmn rronan conrona'rron on NEW r031:

01 ROYAL OAK, MICHIGAN, ASSIGNOR, BY EESNE ASSIGN- RAIJIATOR CORE, 0]? PORT CHESTER, NEW YORK, A

HEATING UNIT Application filed January 1'3, 1928. Serial no. 246,538.

tion radiators, the length of which may vary according to service conditions. In ractice,

such sections consist of somewhat attened, elongated tubes closed at one end and formed with an aperture at the opposite end, which apertured end is adapted to be fitted and secured in a pipe connection element 1n service connection with the supply line for the heating medium employed. As these radiator sections are disposed horizontally in service and are of the type wherein condensation 1s drained back through the supply line, a particular form of pipe connect-ion fitting is required, and the present invention deals with such connections.

The primary object of this invention is the provision of an improved pipeconnection fit ting adapted to connect a radiator section with its heating medium supply line, and formed to permit maximum drainage of condensation irrespective of the relative service positions of the supply line and radlator section. Other objects will be apparent from the description to those skilledin the art.

In the accompanying drawings Figure 1 1s a side elevation of a pipe connectlon formed in accordance with the principles of the invention.

Figure 2 is an end elevation thereof; from the right of Figure 1.

Figure 3 is a side elevation of another form of connection as constructed within the province of the invention.

Figure 4 is an end elevation'thereof from the right of Figure 3.

The form of connection illustrated in Figures l and 2 is adapted for use in heating systems employing one section radiators and wherein the supply line inlet is vertically disposed, the radiator section being horizontally positioned. The connection comprises an elbow casting 5 havinga major body porrespondence with the cross sectional configuration of a radiator section (not shown) with which it is to be employed. The inlet end of the casting is formed in an enlarged head 7 provided with an internally threaded annular bore for reception of the supply pipe (not shown), which head gradually tapers inward above the threaded portion into the side walls ofthe body portion 6. The radiator end of the casting, designated as 8, terminates and lies entirely within a plane parallel to the axis of the bore in the head 7, and at a short distance spaced laterally from the head. This end 8 is formed with an aperture 9, the bottom 10 of which coincides with the bottom of the passage through the casting and which is disposed in a plane at right angles to the tion'6 of a flattened tubular formation in coraxis of the bore in the head 7, spaced incasting maybe provided with a boss 11 for mounting an air vent cap if desired for use in connection with the system.

The form of connection illustrated in Figures 3 and 4 is adapted for use in heating systems employing one section radiators and wherein the supply line inlet is horizontally disposed, as well as the'radiator section. In

the illustration and description of this form of connection like reference characters are employed to designate like parts as in the form previously described, being primed for clarity. In all respects except the disposition of the head for receiving the suppl pipe the two forms of castin are similar. 11 this embodiment the headhas the axis of its bore disposed at a right angle to the plane of the radiator end 8 of the casting 5', .the major body portion 6' rising above the head and carrying at its high point the boss 11 for an air vent as in the previously described form. Asithe bore of the head 7 registers with the aperture 9 of the casting, the bottom of the internal mg, as at 10 throughout.

passage through the castparallels the axis of the bore The diameter of the head 7 is one half the length of the raconnection it will be um drainage of condensate is secured, as the casting provides no will fall within the scope of it is claimed.

I claim r A pipe connection for radiator sectlons comprising a castin ternal passage the having a major b0 end as a flatt tion with the a radiator section and ing may occur.

tion and illustration of the invention have certain details enteron thereof, it is to be desired changes and made in such details as the invention as g providedywith an in; rethrough, said casting dy portion formed at one ened tube, adapted for conneccorrespondingly shaped end of the 0 body portion being formed a for connection with a su the bottom surface of'th tion terminating plane above the h side of the pipe 0 ping of liquid i prevented.

n the radiator section ther end of said s a rounded tube pply or return pipe, e flattened tube porand' lying .entirely within a ighest point of the drainage onneoting end whereby trapwill be In testimony whereof I aflix my signature.

RAL

PH HAMILT- ON BEACH. 

